There were 16,484 households out of which 31.20% had children under the age of 18 living with them, 56.10% were
married couples living together, 9.10% had a female householder with no husband present, and 30.50% were non-families. 25.80% of all households were made up of individuals and 12.00% had someone living alone who was 65 years of age or older. The average household size was 2.47 and the average family size was 2.97.

The county population was spread out with 24.70% under the age of 18, 6.40% from 18 to 24, 22.50% from 25 to 44, 28.60% from 45 to 64, and 17.80% who were 65 years of age or older. The median age was 42 years. For every 100 females there were 96.00 males. For every 100 females age 18 and over, there were 94.00 males.

Also from the
census[12] of 2010, the median income for a household in the county was $46,058, and the median income for a family was $52,152. Males had a median income of $41,301 versus $31,659 for females. The
per capita income for the county was $22,413. About 7.30% of families and 10.20% of the population were below the
poverty line, including 13.40% of those under age 18 and 9.80% of those age 65 or over.

Politics

Montrose is a powerfully Republican county. It has not been won by a Democratic Presidential nominee since
Lyndon Johnson‘s 1964 landslide – indeed since then, no Democrat has managed forty percent of the county’s vote. The county has leaned Republican ever since 1920; although before this, it did tend to vote Democratic between 1896 and 1916 except during the landslide loss of
Alton B. Parker in 1904.